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diff src/http/modules/ngx_http_range_filter_module.c @ 7067:e3723f2a11b7

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Parenthesized ASCII-related calculations. This also fixes potential undefined behaviour in the range and slice filter modules, caused by local overflows of signed integers in expressions.
author Valentin Bartenev <vbart@nginx.com>
date Mon, 17 Jul 2017 17:23:51 +0300
parents 887c8c58ffeb
children a2f5e25d6a28
line wrap: on
line diff
--- a/src/http/modules/ngx_http_range_filter_module.c
+++ b/src/http/modules/ngx_http_range_filter_module.c
@@ -315,7 +315,7 @@ ngx_http_range_parse(ngx_http_request_t 
                     return NGX_HTTP_RANGE_NOT_SATISFIABLE;
                 }
 
-                start = start * 10 + *p++ - '0';
+                start = start * 10 + (*p++ - '0');
             }
 
             while (*p == ' ') { p++; }
@@ -345,7 +345,7 @@ ngx_http_range_parse(ngx_http_request_t 
                 return NGX_HTTP_RANGE_NOT_SATISFIABLE;
             }
 
-            end = end * 10 + *p++ - '0';
+            end = end * 10 + (*p++ - '0');
         }
 
         while (*p == ' ') { p++; }